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![Page 1: Design and Implementation the Native Web Browser and Server for Content- Centric Networking Guoshun Nan*, Xiuquan Qiao*, Yukai Tu*, Wei Tan#, Lei Guo*,](https://reader030.fdocuments.net/reader030/viewer/2022032704/56649d6e5503460f94a4f7f3/html5/thumbnails/1.jpg)
Design and Implementation the Native Web Browser and Server for Content-Centric
Networking
Guoshun Nan*, Xiuquan Qiao*, Yukai Tu*, Wei Tan#, Lei Guo*, Junliang Chen*
*Beijing University of Posts and Telecommunications, Beijing, China#IBM T. J. Watson Research Center
2015.5.20
Contact: [email protected]
CCNxCon 2015 Technical Report
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Outline
Introduction
Related Work
Design Principles & Architecture Implementation
Experiments and Demonstration
Discussions
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IntroductionIntroduction
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Application Provisioning Challenge in CCN
CCN network is completely different from the existing IP network. The existing application tools are mainly designed for existing network. It is obvious that enormous efforts are needed to rewrite or update current application tools running over IP to run over CCN.
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World Wide Web (WWW) has becomeone of the most popular Internet applications, with trafficvolume increasing due to the popularity of social networking,cloud computing, and video streaming hosting.
Dominant Internet Application: WWW
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6----from Prof. Beichuan Zhang of NDN Project
Great Changes of Web Application in IP and CCN
Load Balancer
CCN/
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Motivations
The existing web servers are designed for the hypertext transfer protocol (HTTP) and IP-based Internet rather than CCN, and therefore can not
communicate with CCN routers directly.
The existing web servers are designed for the hypertext transfer protocol (HTTP) and IP-based Internet rather than CCN, and therefore can not
communicate with CCN routers directly.
How to effectively support the dominant browser-based web applications is a key to the successof CCN.
How to effectively support the dominant browser-based web applications is a key to the successof CCN.
Present Situation
Unresolved Issue
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Related workRelated work
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Related work
HTTP-CCN Proxy/Gateway Approach
NDN.JS Approach
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HTTP-CCN Proxy Approach (1)
Alcatel-Lucent Bell Labs
Alcatel-Lucent Bell Labs
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HTTP-CCN Proxy Approach (2)
Orange LabsOrange Labs
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Advantages vs. Disadvantages
The HTTP-CCN proxy approach has no influence on existing Web browsers and Web applications, which helps introduce the existing web traffic into CCN
The HTTP-CCN proxy approach has no influence on existing Web browsers and Web applications, which helps introduce the existing web traffic into CCN
However, due to the protocol conversion cost and mismatch of HTTP with the CCN protocol, the proxy/gateway is not an efficient approach.
However, due to the protocol conversion cost and mismatch of HTTP with the CCN protocol, the proxy/gateway is not an efficient approach.
Advantages
Disadvantages
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NDN.JS Approach
Given the installation and configuration of ‘ccnd’ (a CCN router daemon) requires the understanding of the protocol design and significant skill in low-level system management.The CCNx package is not well supported on some platforms, such as Microsoft Windows and iOS.
Given the installation and configuration of ‘ccnd’ (a CCN router daemon) requires the understanding of the protocol design and significant skill in low-level system management.The CCNx package is not well supported on some platforms, such as Microsoft Windows and iOS.
Background
Therefore, it is desirable to have a more ‘lightweight’ solution for bringing CCN services to average Internet users.
Therefore, it is desirable to have a more ‘lightweight’ solution for bringing CCN services to average Internet users.
Motivation
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NDN.JS Approach
Compared with HTTP/NDN proxy approach, NDN.JS tries to import the NDN function into web browser with Javascript library, which makes the web browser can identify NDN naming scheme in part of Tags.
US UCLA NDN Project GroupUS UCLA NDN Project Group
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Advantages vs. Disadvantages
NDN.JS has the advantage of working with main stream browsers easily which some people might feel more comfortable with. In that case, the impact of NDN.JS on existing mainstream browsers is relatively less.
NDN.JS has the advantage of working with main stream browsers easily which some people might feel more comfortable with. In that case, the impact of NDN.JS on existing mainstream browsers is relatively less.
But, since the kernel of existing browsers can not support NDN mechanism natively, some functions are limited. For example, how to render NDN ContentObjcets in Web browser is still an issue to be addressed by NDN.JS approach.
But, since the kernel of existing browsers can not support NDN mechanism natively, some functions are limited. For example, how to render NDN ContentObjcets in Web browser is still an issue to be addressed by NDN.JS approach.
Advantages
Disadvantages
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Our Motivations
The lack of native support for web applications will greatly hamper the wide adoption of CCN.The lack of native support for web applications will greatly hamper the wide adoption of CCN.
Therefore, to enable the Web browser and Web server to inherently support the extensive CCN-based applications, the complete Web browser and Web server dedicated to CCN is needed, which can fully embody the advantages of CCN.
Therefore, to enable the Web browser and Web server to inherently support the extensive CCN-based applications, the complete Web browser and Web server dedicated to CCN is needed, which can fully embody the advantages of CCN.
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Native Approach: NDNBrowser and CCNxTomcat
Our native
approach
Our native
approach
Our native
approach
Our native
approach
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Design Principles & Architecture Implementation
Design Principles & Architecture Implementation
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Design Principles of CCN-enabled Web Browser
The complete content fetching, loading and rendering support of CCNx URI in HTML,CSS and JavaScript
Support for HTML, Images, CSS files and JavaScript files, Audio/Video tags in HTML5, JavaScript-based AJAX and developer-friendly API
The native function integration of web browser with CCN new features
Support for Form submission
Support for dynamically generated personalized content
Support for friendly user interface
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Technical approach of CCN Web Browser
We designed and developed an extended Web browser (i.e. NDNBrowser) based on open source WebKit to inherently support NDN-based web application
Some native NDN functions, such as fetching content from router caches or origin servers, fetching the latest version, have been embedded directly into the browser to fully support the seamless interactions between web browser and NDN network
Considering backwards compatibility and smooth network evolution, NDNBrowser is designed to enable content fetching by ’ccnx:/’ and ’http:/’ URI scheme for HTML, CSS and JavaScript simultaneously
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NDNBrowser: An Extension of Webkit
The blue components are extendedThe blue components are extended
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Component Architecture of NDNBrowser
For detailsFor details
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Implementation Structure of NDNBrowser
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Design Principles of CCN-enabled Web Server
Seamless integration of the CCN protocol stack with web servers
Support both static and dynamic content resources
Support for push-type web application mode
Resource processing granularity at the named data chunk level
Cache management for the Servlet response
Supporting the smooth evolution of web applications
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Architecture of CCNxTomcat
For detailsFor details
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Experiments and Demonstration
Experiments and Demonstration
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Future Internet Testbed of Our University
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CCN-Enabled Web Application Platform
CCN-enabled Web Server
CCN Interests Log
Dedicated CCN Client Simulator
Dedicated CCN Client Simulator
Dedicated CCN Client Simulator
CCNConenctor
Static File
ConnectorConnector
ProcessorProcessor
Servlet ContainerServlet ContainerEngineEngine
HostHostWrapperWrapper
HTTPProcessor CCNProcessor
HTTPConenctor
Service AdaptorService Adaptor
DefaultServlet
DefaultServlet
ServletServlet
Static File
DataBase
CCN Content
Repository
ContentManagerContentManager
ContentListener
CCNInputBuffer
CCNOutputBuffer
CCN Content Cache
CCNNetworkManager CCNPraser CCNTypeSel
etor
CCNDynamicRequest
CCNURIManager
Request/Response
CCN-enabled Web BrowserBrowser UI
Network
WebKit Embedding API
WebCore JavaScriptEngine
Platform Interaction API
Parser Engine
RenderingEngine
Loading Engine
Storage
Graphics Audio/Video ...
CCNx HTTP
IPCCN Interest packets log collecting and analysis system
CCN Network
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Function Test
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Function Test Results
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Function Test Results (Con.)
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Function Test Results (Con.)
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Performance Test of NDNBrowser
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Performance Test of CCNxTomcat
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A Real CCN-enabled Web Application Case
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Demonstrations
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DiscussionsDiscussions
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Challenge 1
Two Important Features of CCN/NDN In-network Caching Interest Aggregation
AdvantagesLow Response TimeReducing the Duplicated Network Traffic
DisadvantagesContent providers will be unaware of the actual usage of
their contents throughout the network. This new model is misaligned with existing business
models where advertising revenue is based on content hit count.
Potential Mismatch with Existing Business Models
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Challenge 2
The CCN/NDN is a pull-based network and is unfriendly for push-based applications.
Efficiently Supporting Diverse Application Types
Fortunately, the new version CCN implementation (CCNx 1.0) has improved this drawback in the protocol stack. In this new version, the CCN Interest packet message supports the optional payload, which can be used to carry user’s data.